A method for producing a lead

Details A method for producing a lead A method for producing a lead

H - Electricity

01

B

H01B 13/06 (2006.01) H01B 11/12 (2006.01)

Patent

CA 2617568

Method for producing a lead (4, I) 1 comprising an elongate con¬ ductor (7) and a helically shaped string (4) of insulator mate- rial coaxially carried by the conductor, which string has axi- ally spaced-apart winding turns, which abut against and along the conductor. The string (4) is formed of a tubular blank (1) having a greater inner diameter than the outer diameter of the conductor (7) . The tubular blank (1) is cut along a helically shaped path (2) coaxial with the blank. The cut blank (1, 2) is threaded coaxially onto the conductor (7) and is axially extended. Also, the lead manufactured by the method is claimed.

La présente invention a trait à un procédé pour produire un fil (4, I) comprenant un conducteur allongé (7) et une chaîne de forme hélicoïdale (4) d'un matériel d'isolation transporté coaxialement par le conducteur, laquelle chaîne possède des enroulements espacés axialement, qui butent le long du conducteur. La chaîne (4) est formée d'un blanc tubulaire (1) ayant un diamètre interne supérieur au diamètre extérieur du conducteur (7). Le blanc tubulaire (1) est découpé le long d'un chemin de forme hélicoïdale (2), de manière coaxiale au blanc. Le blanc découpé (1, 2) est fileté coaxialement sur le conducteur (7) et il est axialement étendu. De même, l'invention traite du fil fabriqué par le procédé.

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